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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v2.1.30 Home All releases ←olderv2.1.29 v2.1.31newer→
Claude Code v2.1.30

SDK Schema Documentation

Extensive new .describe() annotations added across many Zod schema types used by the SDK API, including:

  • Model info: value, displayName, description fields
  • Skill info: name, description, argumentHint fields
  • MCP server status: connection status, tools, server info, error messages
  • setMcpServers operation results: added/removed servers, error map
  • rewindFiles operation results
  • User account info
  • Config scopes: "local", "user", "project", "claudeai", "managed"
  • Permission modes: "default", "acceptEdits", "bypassPermissions"

This improves the developer experience for anyone building on the Claude Code SDK.

Evidence

Schema descriptions (search for "Information about an available model", "Status information for an MCP server connection", "Config scope for settings")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.30 →